Chemistry Puzzle

2. This means two parts hydrogen.
4. a procedure or process for obtaining an objective.
6. the elements or compounds produced by a chemical reaction.
11. Number 6.022 x 10^23. The number of particles in exactly one mole of a pure substance.
13. these have some properties of metals and some of nonmetals.
14. atom that has a positive or negative charge.
15. The ability to do work or cause change.
17. these have a positive electrical charge.
19. Mixture Mixture in which different materials can easily be distinguished.
20. A pure substance made of two or more elements chemically combined in a set ratio.
22. Atomic Mass weighted average of the atomic masses for the isotopes of an element
24. Number protons + neutrons.
25. the amount of space an object takes up.
27. Number the number of protons in an atom.
28. a substance in the fluid state of matter having no fixed shape but a fixed volume
29. table a table that classifies chemical elements. Arranged by atomic number and families that have similar characteristics.

1. a well-substantiated explanation of some aspect of the natural world.
3. move around the nucleus electrons.
5. Homogeneous mixture with particles so small that they cannot be seen with a microscope.
7. Figures the number of all known digits reported in measurements plus one estimated digit.
8. these have no electrical charge, they are neutral.
9. the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity
10. Mixture Contains 2 or more gases, liquids, or solids substances blended evenly.
12. Analysis a technique of problem-solving that uses the units that are part of a measurement to help solve the problem.
16. the vertical columns of the periodic table.
18. composed of the elements hydrogen and oxygen. this is an example of a compound.
21. have a shiny or metallic luster, good conductors of heat and electricity.
23. The basic particle from which all elements are made.
26. Mass the mass of one mole of a pure substance.